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ÎÒдÁËÒ»¸öPHP½Å±¾¾ÍÊÇ ²éѯÊý¾Ý¿âÖеÄURL ÊDz»ÊÇÓÐÐ§ÍøÖ·!ÿÌìÍíÉ϶¨Ê±Ö´ÐУ¡µ«ÊÇÎÒ¸Õ¸Õ·¢ÏÖLINUX ½ø³ÌÖоÓÈ»ÄǸö½Å±¾µ½ÏÖÔÚ»¹ÔËÐУ¡¶øÇÒÔËÐÐÁË4Ì죡¶øÇÒÎÒ²»É±µôÄǸö½ø³Ì£¬ÄÇ»¹ÊÇ»á¼ÌÐøÔËÐУ¡ÊÇÎҵĽű¾Ð´ÁËËÀÑ­»·£¿»¹ÊÇÓÐÎÊÌ⣡ÎÒÌù³öÀ´¸ø´ó¼Ò¿´¿´£¡Ö¸µãÏ£¡
PHP code:

<?php
set_time_limit(0);
$conn=mysql_connect('localhost','xxx','xxx');
$sql="select url from my_website ";
$result=mysql_db_query('xxx',$sql);
while($array=@mysql_fetch_array($result))//´ÓÊý¾ÝÖÐÌáÈ¡³öURL
{
$test=get_headers($array[url]);//½ØÈ¡HTTP¿ªÍ· µÄ200 304 µÈÍ·ÊôÐÔ
preg_match_all('/\s(\d+)\s/',$test[0],$url);
if($test==false)//ÎÞÐ§ÍøÖ·
{
$sql1="update my_website set scanurl='false' where url=('$array[url]')";
$result1=mysql_db_query('xxxx',$sql1);
}
else//ÓÐÐ§ÍøÖ·£¡
{
$newurl=$url[0][0];
$sql2="update my_website set scanurl=('$newurl')where url=('$array[url]')";
$result2=mysql_db_query('xxxx',$sql2);
}
sleep ( 0.5 );
}
?>


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linux»·¾³ÏÂgethostbynameº¯ÊýÎÊÌâ - C/C++ / CÓïÑÔ

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  struct hostent *hp; 
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hp = gethostbyname("www.google.com");
if (hp)
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Java code:

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